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The value of 21b – 32 + 7b – 20b is:

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Web(i) 21b – 32 + 7b – 20b Solution:- When terms have the same algebraic factors, they are like terms. Then, = (21b + 7b – 20b) – 32 = b (21 + 7 – 20) – 32 = b (28 – 20) – 32 = b (8) – 32 … WebAlgebraic Expressions (Maths) Class 7 - NCERT Questions. Q 1. Get the algebraic expressions in the following cases using variables, constants and arithmetic operations. (i) Subtraction of z from y. (ii) One-half of the sum of numbers x and y. (iii) The number z multiplied by itself.

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WebPlay this game to review Mathematics. one third of the sum of numbers a and b Web21b – 32 + 7b – 20b. Answer: ANSWER: When term have the same algebraic factors, they are like terms. ... here we can see that we have to simplify by combining the like terms so let's see what are the like terms here so 21b 7b and minus 20b these are the like terms so we can only solve the like terms together so i'm copying down the question ... does technology connect or isolate us

Q1-Ex12.2-Ncert--Simplify combining like terms 21b-32+7b-20b, …

Web2 answers. Factorize the following: t^2 - 10t +24. Posted by Yati Shekhawat 4 hours ago. CBSE > Class 07 > Mathematics. 0 answers. A verandah of width 2.25 m is constructed all along outside a room which is 5.5 m long and 4 m wide. Find: 1.the area of the verandah. 2.the cost of cementing the floor of the verandah at the rate of ₹ 200 per m2 ... WebWhen term have the same algebraic factors, they are like terms. Then, = (21b + 7b–20b)–32. = b (21 + 7–20)–32. = b (28 - 20)–32. = b (8) - 32. = 8b - 32. Thanks. does technology change the way we think

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WebThe value ofvariable is the solution ofthe expression. 10. The general (nth)term ofa number pattern (or a sequence) is an expression is n. ... 21b - 32 + 7b- 20b =21b + 7b - 20b - 32 (Rearranging like terms) = (21 + 7-20)b - 32 =8b -32. (ii) - z2 + 13z2- 5z + 7z3 - 15z =7z3 _Z2 + 13z2- 5z -15z (Rearranging like terms) WebSimplifying and combining like terms we get: (i) 21b - 32 + 7b - 20b = 8b−32 (ii) -z 2 + 13z 2 - 5z + 7z 3 – 15z = 7z 3 + 12z 2 – 20z (iii) p – (p – q) – q – (q – p) = p − q (iv) 3a – 2b – ab … facial sunscreen with zincWebMar 23, 2024 · Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo. does technology cause obesity

"WebSolution Simplification of algebric expression: Given: 21 b - 32 + 7 b - 20 b On combining the like terms and simplifying we get = ( 21 b + 7 b – 20 b) – 32 = b ( 21 + 7 – 20) – 32 = b ( … " - The value of 21b – 32 + 7b – 20b is:

The value of 21b – 32 + 7b – 20b is:

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WebNov 4, 2024 · Answer: Complete step-by-step solution: The like terms in the expression $21b - 32 + 7b - 20b$ are 21b, 7b, 20b. So the simplified form of expression $21b - 32 + 7b - … WebThe value of 21b-32 + 7b – 20b is : 8b - 32. 28b -52-8b - 32. 48b- 32. 4) Subtract a –b from a+b the result is : 2a. 2a-2b. 2a+2b. 2b. 5) Subtracting -5y2 from y2 ,the result is : 4y 2-6y 2. 6y 2-4y 2. 6) If A = 2x – y + 3xy, B = x + 2xy and C = 3y …

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WebFeb 7, 2024 · Solution For 4) Simplify: 21b−32+7b−20b Section C Find the value of x : a) 3(x+2)+5x−7 b) 6x+5(x−2) The world’s only live instant tutoring platform. Become a tutor … http://aven.amritalearning.com/?sub=100&brch=300&sim=1560&cnt=3702

WebThe expression 21b - 32 + 7b - 20b on simplification gives one of the following expressions: A. 8b + 32 B. 8b - 32 C. 32 - 8b D. 24b. ... Find the value of the following expression using suitable property: 725 × (-35) + (-725) x 65. ... China 32 18 14 21 21. 34. Town A is 60 km from town B, and 61 km from town C. ... Web2 answers. Factorize the following: t^2 - 10t +24. Posted by Yati Shekhawat 4 hours ago. CBSE > Class 07 > Mathematics. 0 answers. A verandah of width 2.25 m is constructed all …

WebQuestion 1 : Get the algebraic expressions in the following cases using variables, constants and arithmetic operations: (i) Subtraction of z from y. (ii) One half of the sum of numbers x and y. (iii) The number z multiplied by itself. (iv) One-fourth of the product of numbers p and q. (v) Numbers x and y both squared and added. WebBasic Math. Math Calculator. Step 1: Enter the expression you want to evaluate. The Math Calculator will evaluate your problem down to a final solution. You can also add, …

Web(i) 21b – 32 + 7b – 20b Solution:- When terms have the same algebraic factors, they are like terms. Then, = (21b + 7b – 20b) – 32 = b (21 + 7 – 20) – 32 = b (28 – 20) – 32 = b (8) – 32 = 8b – 32 (ii) – z2 + 13z2 – 5z + 7z3 – 15z Solution:- When terms have the same algebraic factors, they are like terms. Then, = 7z 3 + (-z 2 + 13z 2) + (-5z – 15z)

WebJun 28, 2024 · (i) 21b – 32 + 76 – 20b Combining the like terms, we have (21b + 7b – 20b) + (- 32) = (21 + 7 – 20) b + (- 32) = 8b – 32 (ii) -z 2 + 13z 2 – 5z + 7z 3 – 15z Combining like terms, we get = 7z 3 + (-z 2 + 13z 2) + (-5z – 15z) = 7z 3 + (-1 + 13)z 2 + (- 5 – 15)z = 7z 3 + 12z 2 – 20z (iii) p- (p-q)-q- (q-p) = p- p + q – q – q + p does technology help or hinder societyWebSep 10, 2024 · resistance value single crystal silicon single power supply resistance Prior art date ... を供給する2n（nは2以上の整数）個、本実施形態では、4個の電力供給部20A、20B ... 電力供給部20A～20Dは、図2に示すように、4つの端子21A、21B、21C、21Dと、4本の電極22A、22B、22C、22Dと、4つの ... does technology help or hurt usWebYou have 5a ⋅b = 3b ⋅b −2a ⋅a 15a ⋅b = −7b ⋅ b− 2a ⋅ a so subtract the 2nd equation from the first to get −10a ⋅ b = 10b ⋅b ⇒ b⋅ b = −a ⋅b Also 35a ⋅ b = 21b ⋅b −14a⋅ a ... Dot product of … does technology have a positive or negativeWebApr 27, 2024 · The value of 21b - 32 + 7b - 20b is: 12. 20 − 3 = 17. For example, 10x + 63 and 5x - 3 are examples of algebraic expressions. . Class 8 Maths Algebraic Expressions and Identities Very Short Answer Type Questions "product of -3 and x" means that you multiply -3 by x, creating (-3x) Advertisement New questions in Mathematics Find the volume of ... does technology help students with learningWebMar 25, 2024 · 21b-32+7b-20b= 21b +7b -20b -32 = 28b -20b - 32 = 8b -32 . Advertisement Advertisement New questions in Mathematics. The diameter of a circle is 16 meters. … does technology improve student learningWebMore than just an online factoring calculator. Wolfram Alpha is a great tool for factoring, expanding or simplifying polynomials. It also multiplies, divides and finds the greatest common divisors of pairs of polynomials; determines values of polynomial roots; plots polynomials; finds partial fraction decompositions; and more. Learn more about: does technology improve or control our livesWebThe expression 21b - 32 + 7b - 20b on simplification gives. Q. If 8 C r = 8 C r + 2, then the value of r C 2 is. Q. The value of x 1 / 2.y ... facial support bands